Prison School

Five boys who have recently joined an all-girls school struggle to build relationships with their female classmates and soon find themselves in conflict with the school's secret "Underground Student Council," leading to harsh consequences.

Hana faces an awkward moment when Kiyoshi witnesses her in an embarrassing situation, while he scrambles to leave prison and keep a date with Chiyo. Meanwhile, Gakuto pursues his own agenda.

While Meiko is distracted managing two groups, Kiyoshi enlarges an escape route just in time to make his date. Shingo, already suspicious, witnesses an unexpected and revealing moment.

Gakuto faces severe consequences from Meiko after committing a serious transgression against Mari. To help Kiyoshi escape prison, Gakuto devises a risky plan involving Kiyoshi disguising himself as a girl.

Kiyoshi returns after his escape, but confronts the consequences of his actions with Gakuto and the group. As the truth emerges, Chiyo reflects on her response to Kiyoshi and chooses to offer him another opportunity.

Mari presents the DTO plan to Hana, and the two begin strategizing to expel the boys from school. Shingo encourages the other boys to isolate Kiyoshi, while Meiko works on a more insidious scheme to further divide them.

Shingo, who is temporarily released from prison, meets a girl named Anzu at a local arcade. Meanwhile, Gakuto consults his Guan Yu figurine for advice, but when the figurine's sword tip falls off, it sets off a series of significant events.

Andre experiences a psychological breakdown after a week without structure or discipline. Shingo takes Anzu to the cinema, only to have his hopes disappointed. Meanwhile, the Underground Student Council continues advancing their DTO initiative.

Shingo recalls seeing emails related to DTO on a computer at the corrections office, which could show the boys were framed. Determined to uncover the truth, the group plans to break into the office to retrieve the evidence.

With their expulsions looming and morale at a low point, the boys begin to lose hope—until Gakuto, in a moment of unexpected inspiration, proposes a final, desperate plan to save them, provided they can keep their situation under wraps long enough to execute it.

The boys are given a one-day reprieve and attempt to infiltrate the corrections office once more, but face resistance from the Underground Student Council. Meanwhile, Hana seeks to confront Kiyoshi personally.

Hana intensifies her efforts to manipulate Kiyoshi for revenge, but he responds by implementing a strategy inspired by classical military tactics. As the boys are confined to their cells for the night, the success of their respective plans remains uncertain.